James n



Nu; 6l6,752. Patented 0190.27, I898. .1. N. WEBB.

AIB REGULATING DEVICE FOR ATMOSPHERIG GAS BUBNEBS.

' (Application filed Nov. 26, 1897.)

(No Model.)

INVENTOR UNITED STATES PATENT Orrrcn.

' JAMES N. WVEBB, OF \VATERBURY, CONNECTICUT, ASSIGNOR TO THE BENE- DICT 8r BURNHAM MANUFACTURING COMPANY, OF SAME PLACE.

AlR- REGULATlNG DEVICE FOR ATMOSPHERIC GAS-BURNERS;

SPECIFICATION forming part of Letters Patent No. 616,752, dated December 27, 1898;

Application filed November 26, 1897. Serial No. 659,816. (No model.)

To aZ Z whom it may concern:

Be it known that I, JAMES N. WEBB, a citizen of the United States, residing at Taterbury, in the county of New Haven and State.

of Connecticut, have invented certain new and useful Improvements in Air-Regulating Devices for Atmospheric Gas-Burners, (Case 13;) and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to atmospheric gasburners generally, but is especially adapted to burners for incandescent illumination, and has for its object to provide a novel regulating device or shutter for controllingv the admission of air to the atmospheric gas or Bunsen tube.

With these ends in View myinvention consists in the special details of construction and combination of parts, which I will hereinafter describe and then point out in the claims.

In the accompanying drawings, forming part of this specification, Figure 1 is an elevation, on an enlarged scale, of a Bunsen tube with one form of my novel air-regulator applied thereto, the regulating-tube being in elevation and the regulator case or shell in section; Fig. 2, a similar view showing a slightly difierent form in which I have carried my invention into effect, both the case and the regulating-tube being in section. Figs. 3 and 5 are detail views of Bunsen tubes,

showing said tubes provided with different other source of supply, andB an atmospheric gas or Bunsen tube having the usual airopenings 1.

C denotes the air-regulator as a whole, which consists of a regulating-tube 2, which fits the Bunsen tube closely, but may be turned thereon, and a case or shell 3, which surrounds the air-openin gs and the up er and lower edges of which are attached to the regulating-tube. The shape of this case or shell is not of the essence of my invention. It is simply necessary that it be so shaped as to form a chamber between the case and the regulating-tube. In the drawings I have shown the case as made in two parts, although the mode of construction and shape of the case are mere details of construction which may be changed to suit the requirements of the trade or the taste or convenience of the manufacturer. The case is provided, preferably in its under side, with air-openings 4, which may be of any shape, size, or number, it being simply necessary that air be permitted to pass freely into the chamber of the regulator. At the side of one of the air-openings in the Bunsen tube I provide a stop 5, which may be made by striking out the metal of the Bunsen tube, as shown in Figs. 1,2, and 3, or, if preferred, a piece of these openingsrecesses 7, one of which is 80,

adapted to receive lug 5 in the wholly open position of the regulating-tube and the other to receive said lug in the wholly closed position of the regulating-tube.

8 denotes a friction devicein the present instance a spring-which is adapted to bear either upon the base, as shown in Fig. 1, or upon the Bunsen tube, as shown in Fig. 2, and which serves to retain the regulatingtube, or rather the regulator as a whole, in any position in which it may be placed. This spring may be formed from the metal of the regulating-tube itself, although it is obvious that, if preferred, a spring made in a separate piece may be riveted or soldered to the 5 regulating-tube and caused to bear upon the Bunsen tube.

In Fig. 6 I have illustrated a form in which the regulating-tube is slotted from opening 6 down to the bottom thereof, the sides of the loo tube being slightly closed together, so as to cause it to hug the Bunsen tube, the rogu lating-tube itself thus serving as a friction and performing the function of the independent spring 8, (shown in Figs. 1 and 2,) which in this form is dispensed with.

The special mode in which the parts comprising the air-regulator are assembled and secured together is not of the essence of my invention and may be Varied to suit the requirements of the trade or the convenience or taste of the manufacturer. In Figs. 1, 2, and 6 I have shown the upper end of the regulating-tube as provided with a rib 10, and in Fig. 1 I have shown the lower end also of the regulating-tube as provided with a rib 10. In assembling the regulating-tube is passed through the central opening in the case, the edge or edges resting against the rib or ribs 10. In the form illustrated in Fig. 1 both ends of the regulating-tube are then closed outward, as at 11, thereby locking the parts firmly together. In the form illustrated in Figs. 2 and 6 the lower rib 10 is dispensed with, the end of the regulating-tube being simply passed through the opening in the lower end of the case and not closed outward. lVhen in place on a Bunsen tube, the lower end of the regulating-tube rests upon the base.

The operation will be apparent from the drawings. Air passes freely into the air-regulator at openings at and passes into the Bunsen tube through openings 1 in the Bunsen tube and Gin the regulating-tube. To regulate the quantity of air which can pass into the Bunsen tube, the operator simply oscillates the regulator upon the Bunsen tube, thereby partially or wholly opening or closing openings 1 in the Bunsen tube, as may be required.

Having thus described my invention, I claim 1. The combination with a Bunsen tube having a stop 5, of an air-regulator comprising a regulating-tube adapted to closely fit the Bunsen tube and having. openings adapted to register with the openings in the Bunsen tube and at the sides of one of said openings recesses 7 to receive lug 5 in the wholly open or closed position and a case surrounding said openings and itself having airopenings and attached at top and bottom to the regulating-tube.

2. The combination with a Bunsen tube having a stop 5, of an air-regulator comprising a regulating-tube adapted to closely fit the Bunsen tube and having openings adapted to register with the openings in the Bunsen tube and at the sides of one of said openings recesses 7 to receive lug 5 in the wholly opened or closed position, and an elastic friction device for retarding movement of the regulating-tube.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES N. WEBB.

Witnesses:

A. J. ROBERTS, F. B. DANIELS. 

